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Implantable sensor chip

  • US 5,513,636 A
  • Filed: 08/12/1994
  • Issued: 05/07/1996
  • Est. Priority Date: 08/12/1994
  • Status: Expired due to Term
First Claim
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1. An implantable sensor chip, which comprises:

  • a) a base constructed of an electrically insulating material; and

    b) at least one sensor for generating an output signal in the presence of a constituent or the existence of a condition in a region in which the sensor chip is implanted, the sensor comprising;

    I. an electrically conductive lead mounted on an upper surface of the base, the conductive lead having an output end;

    II. an insulating layer mounted on the upper surface of the base over the electrically conductive lead and sealing the electrically conductive lead between the insulating layer and the base, the insulating layer comprising an aperture extending therethrough for exposing a portion of the electrically conductive lead; and

    III. at least one living cell sealingly covering the exposed portion of the electrically conductive lead with the cell in electrical communication with the lead, the cell generating an electrical signal in response to the presence of the constituent or the existence of the condition, the electrical signal being conducted by the lead to the output end of the lead as the output signal.

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